Injecting your products with integrity & experience!

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Welcome to Ontario Plastics

Established in 1946, Ontario Plastics is the most experienced custom injection molding company in the Rochester metro area. We have established ourselves as a trusted, customer focused, quality partner. We pride ourselves on our processes, tools and methodologies, along with our team-based culture of continuous improvement. Look around and Contact Us for more information!

Why us?
Having an objective opinion on how to improve your operations is a great way to create change and see positive results. At OPI, we’re proud to offer our in-house consulting expertise to you. With our knowledge and depth of experience throughout the injection molding process, you can be sure we will make a difference.